Highly Efficient, Simplified, Solution-Processed Thermally Activated Delayed-Fluorescence Organic Light-Emitting Diodes

Young-Hoon Kim; Christoph Wolf; Himchan Cho; Su-Hun Jeong; Tae-Woo Lee

doi:10.1002/adma.201504490

Highly Efficient, Simplified, Solution-Processed Thermally Activated Delayed-Fluorescence Organic Light-Emitting Diodes

Adv Mater. 2016 Jan 27;28(4):734-41. doi: 10.1002/adma.201504490. Epub 2015 Nov 30.

Authors

Young-Hoon Kim¹, Christoph Wolf¹, Himchan Cho¹, Su-Hun Jeong¹, Tae-Woo Lee¹

Affiliation

¹ Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk, 790-784, Republic of Korea.

PMID: 26619309
DOI: 10.1002/adma.201504490

Abstract

Highly efficient, simplified, solution-processed thermally activated delayed-fluorescence organic light-emitting diodes can be realized by using pure-organic thermally activated delayed fluorescence emitters and a multifunctional buffer hole-injection layer, in which high EQE (≈24%) and current efficiency (≈73 cd A(-1) ) are demonstrated. High-efficiency fluorescence red-emitting and blue-emitting devices can also be fabricated in this manner.

Keywords: buffer hole-injection layer; exciton quenching; high efficiency; organic light-emitting diodes; thermally activated delayed-fluorescence.